❓ Solar FAQ

Solar energy works by converting sunlight into electricity using photovoltaic (PV) solar panels. When sunlight hits the solar cells, it creates an electric current. An inverter converts this DC electricity into AC electricity used in your home. Any excess power can either be stored in a battery (off-grid/hybrid) or exported to the electricity grid (on-grid) earning you credits on your electricity bill.

An on-grid (grid-tied) solar system connects directly to your electricity grid. The solar panels generate electricity, the inverter converts it, and you use it in your home. Excess electricity is exported to the grid and you earn net metering credits.

Best for: Areas with 24/7 reliable electricity supply. No batteries needed — lower cost. You can save 80–95% on your electricity bill. This is the most common system for PM Surya Ghar subsidy.

An off-grid solar system is completely independent from the electricity grid. It uses solar panels + battery storage. During the day, panels charge the batteries and power your home. At night or on cloudy days, the batteries supply power.

Best for: Areas with frequent power cuts, remote locations, farmhouses. Requires battery investment but gives complete energy independence.

A hybrid solar system combines the best of both on-grid and off-grid systems. It has solar panels + batteries + grid connection. Priority: Solar → Battery → Grid. You get backup power during power cuts AND can export excess to the grid.

Best for: Areas with occasional power cuts where you want both backup and grid export. Slightly higher upfront cost but maximum flexibility.

PM Surya Ghar Muft Bijli Yojana is a central government scheme that provides financial subsidy for rooftop solar installation on residential homes.

Subsidy amounts:
• 1 kW system: ₹30,000 subsidy
• 2 kW system: ₹60,000 subsidy
• 3 kW or above: ₹78,000 maximum subsidy

Plus 300 units of free electricity per month! VSOLARIZE is an MNRE registered vendor and handles your complete subsidy application at no extra charge.

Only ALMM (Approved List of Models and Manufacturers) listed solar modules from Indian manufacturers are eligible for PM Surya Ghar subsidy. This means you must use panels made in India.

All the brands VSOLARIZE supplies — Adani Solar, Waaree Energies, Polycab — are ALMM approved and eligible for the full subsidy. Chinese-made panels (even popular brands) do NOT qualify for the PM Surya Ghar subsidy.

For a typical residential rooftop system (1–5 kW), the actual installation takes 1–2 days. However, the complete process including DISCOM approval, net meter application, and PM Surya Ghar registration takes 30–90 days.

Timeline:
• Site survey: Same day or next day
• DISCOM feasibility approval: 7–15 days
• Installation: 1–2 days
• Net meter installation: 15–30 days
• PM Surya Ghar subsidy credit: 30–60 days after commissioning

Modern solar panels last 25–30 years. The performance degrades slowly over time — typically 1–2% in the first year and less than 0.5% per year thereafter.

Typical warranties from brands VSOLARIZE supplies:
• Product/workmanship warranty: 10–12 years
• Linear performance warranty: 25–30 years
• Inverter warranty: 5–10 years

At the end of 25 years, a good quality panel still produces 80–87% of its original rated power.

In the Delhi NCR / Ghaziabad region, 1 kW of solar panels generates approximately 100–130 units (kWh) per month.

Common system sizes:
• 1 kW → 100–130 units/month (₹700–900 bill reduction)
• 2 kW → 200–260 units/month (₹1,400–1,800 bill reduction)
• 3 kW → 300–390 units/month (₹2,100–2,700 bill reduction)
• 5 kW → 500–650 units/month (₹3,500–4,500 bill reduction)

A 3 kW system is sufficient for most 2–3 BHK homes consuming 250–300 units/month.

Net metering allows on-grid solar owners to export excess electricity back to the grid and receive credits on their electricity bill. A bidirectional (net) meter is installed that measures both the electricity you consume from the grid AND the electricity you export.

At the end of the billing cycle, you only pay for the 'net' electricity consumed (units used − units exported). In many months, your bill can come to ₹0 or even go into credit.

VSOLARIZE handles the net metering application with your DISCOM (DVVNL, PVVNL, BSES, etc.) completely free of charge.

In Delhi NCR / UP, the typical payback period for an on-grid solar system is 3–5 years.

Example: 3 kW system
• Total cost: ₹1,50,000–1,80,000
• PM Surya Ghar subsidy: ₹78,000
• Net cost after subsidy: ₹72,000–1,02,000
• Monthly savings: ₹2,500–3,500
• Payback: 2–3 years after subsidy
• Remaining life: 22+ more years of free electricity!

Solar gives 20–25% annual return on investment — better than most fixed deposits.

Solar systems require very minimal maintenance:

Regular maintenance:
• Panel cleaning: Once every 1–2 months (dust/bird droppings reduce output by 10–20%)
• Visual inspection: Check for physical damage, loose wires
• Monitoring: Use the inverter app to track daily generation

Periodic maintenance:
• Inverter check: Annually
• Structure/mounting check: Annually
• Battery check (if applicable): Every 6 months

Most inverters come with WiFi apps that alert you to any issues automatically.

P-Type PERC (older technology):
• Efficiency: 19–21%
• Slightly lower cost
• Good performance, industry standard
• Minor LID (Light Induced Degradation) in first year
• 25-year warranty typical

N-Type TOPCon (newer, premium technology):
• Efficiency: 22–23.5%
• No LID loss — starts strong and stays strong
• Better performance in high heat and low light conditions
• Lower degradation over time (0.4%/year vs 0.55%/year)
• 30-year warranty typical
• 10–15% higher output from same roof area

For PM Surya Ghar subsidy: both types are eligible if ALMM approved.

Yes! Solar panels do not need direct sunlight — they work on daylight (diffused light). However, output is reduced on heavily cloudy days.

Typical performance:
• Bright sunny day: 100% output
• Partly cloudy: 60–80% output
• Overcast/heavy fog: 20–40% output
• Delhi NCR winter haze: 60–75% of summer peak

Over a full year, annual generation estimates already account for seasonal variations, clouds, and foggy winter months. A 3 kW system in Ghaziabad generates approximately 3,600–4,200 units per year on average.

Step 1: Contact us — WhatsApp 8882530739 or call. Tell us your electricity bill amount and roof type.

Step 2: Free site survey — Our team visits your location (within Ghaziabad/NCR) to assess roof area, shadow, orientation and recommend the right system size.

Step 3: Quotation — We send you a detailed quote with panel brand options, system size, total cost and subsidy amount.

Step 4: PM Surya Ghar registration — We register you on the government portal and apply for DISCOM approval on your behalf.

Step 5: Installation — After DISCOM approval, installation is completed in 1–2 days.

Step 6: Subsidy — After net meter installation and commissioning certificate, subsidy is directly credited to your bank account within 30–60 days.